TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT DYNAMIC RAM MODULES

SMMS679 - MARCH 1997

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

features

• Organization TM124BBK32H/I...1048576 × 32 TM248CBK32H/I...2097152 × 32
• Single 5-V Power Supply (±10% Tolerance)
• 72-Pin Single In-Line Memory Module (SIMM) for Use With Socket
• TM124BBK32H/I - Uses Two 16M-Bit DRAMs in Plastic Small-Outline J-Lead (SOJ) Packages
• TM248CBK32H/I - Uses Four 16M-Bit DRAMs in Plastic SOJ Packages
• Long Refresh Period 16 ms (1024 Cycles)
• All Inputs, Outputs, Clocks Fully TTL-Compatible
• 3-State Output
• Common CAS\ Control for Eight Common Data-In and Data-Out Lines in Four Blocks
• Enhanced Page-Mode Operation With CAS\-Before-RAS\ (CBR), RAS\-Only, and Hidden Refresh
• Presence Detect
• Performance Ranges: ACCESS ACCESS ACCESS READ TIME TIME TIME OR t_RAC t_AA t_CAC WRITE CYCLE (MAX) (MAX) (MAX) (MIN)'124BBK32H/I-50 50 ns 25 ns 13 ns 90 ns'124BBK32H/I-60 60 ns 30 ns 15 ns 110 ns'124BBK32H/I-70 70 ns 35 ns 18 ns 130 ns'248CBK32H/I-50 50 ns 25 ns 13 ns 90 ns'248CBK32H/I-60 60 ns 30 ns 15 ns 110 ns'248CBK32H/I-70 70 ns 35 ns 18 ns 130 ns
• Low Power Dissipation
• Operating Free-Air Temperature Range 0°C to 70°C
• Gold-Tabbed Versions Available: TM124BBK32H TM248CBK32H
• Tin-Lead (Solder) Tabbed Versions Available: TM124BBK32I TM248CBK32I

Part numbers in this data sheet are for the gold-tabbed version; the information applies to both gold-tabbed and solder-tabbed versions.

description

TM124BBK32H/I

The TM124BBK32H/I is a 32M-bit dynamic random-access memory (DRAM) module organized as four times 1048576 × 8 in a 72-pin SIMM. The SIMM is composed of two TMS418160ADZ, 1048576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS418160ADZ is described in the TMS418160A data sheet (literature number SMKS891). The TM124BBK32H/I SIMM is available in the single-sided BK-leadless module for use with sockets.

TM248CBK32H/I

The TM248CBK32H/I is a 64M-bit DRAM organized as four times 2097152×8 in a 72-pin SIMM. The SIMM is composed of four TMS418160ADZ, 1048576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS418160ADZ is described in the TMS418160A data sheet (literature number SMKS891). The TM248CBK32H/I SIMM is available in the double-sided BK-leadless module for use with sockets.

View more information about generic part numbers:TM124BBK32H, TM124BBK32I, TM248CBK32H, TM248CBK32I

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